1. Boudet RA, Morse PA, Watts LM (1978) An analysis of phytohaemagglutinin lymphoblastogenesis in whole blood. Surg Gynecol Obstet 146: 609?616
2. Böyum A (1968) Isolation of mononuclear cells and granulocytes from human blood. Scand J Clin Lab Invest [Suppl. 97] 21: 77?89
3. David HA, Hartley HO, Pearson ES (1954) The distribution of the ration, in a single normal sample, of range and standard deviation. Biometrika 41: 482
4. Junge V, Hoekstra J, Walte L, Deinhardt F (1970) Microtechnique for quantitative evaluation of in vitro lymphocyte transformation. Clin Exp Immunol 7: 431?437
5. Lavanchy D, Rosenthal M (1978) Die Stimulierbarkeit von Lymphozyten bei verschiedenen Altersklassen. Schweiz Med Wochenschr 108: 551?555